PSI63C0.225-L1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI63C0.225-L1 is a medium frequency inverter from the PSI Frequency Inverters series with an output frequency of 1 kHz and a mains voltage range of 400 to 480 VAC. It features air cooled operation, single housing configuration, and offers IP20 protection class. The inverter uses a frame clamp terminal type and requires an IP54 enclosure for installation.
Internal Product Review
The PSI63C0.225-L1 is a medium frequency inverter with efficient air-cooled operation. Support for 400 to 480 VAC mains voltage and 1 kHz output frequency makes this unit especially capable in demanding drive applications. IP20 protection with an IP54 enclosure requirement is a strong fit for controlled industrial installations.
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Product Description:
The PSI63C0.225-L1 is a medium-frequency inverter manufactured by Bosch Rexroth Indramat within the PSI Frequency Inverters series. Installed between a three-phase supply and an induction or synchronous load, it converts constant mains power into variable medium-frequency output so that machine tools, induction heaters, or specialized spindle drives can match process demands. The unit ships in a single housing intended for mounting inside an IP54 cabinet, allowing fast integration into existing automation enclosures.
The inverter accepts a mains window of 400 – 480 VAC, enabling use on standard industrial grids without a step-down transformer. Internally, it synthesizes an output carrier that can be modulated up to 1 kHz; this extended range supports high-speed spindles that require frequencies well beyond conventional 50/60 Hz. Thermal management relies on an air-cooled design that directs enclosure air across heat sinks, so no external coolant infrastructure is needed. Its intrinsic protection rating of IP20 indicates that live parts are finger-safe, but the assembly must be shielded from dust and liquids by the cabinet. Motor and mains conductors are secured with a frame-clamp terminal system, which accepts rigid or finely stranded wiring without additional ferrules.
Power dissipated as heat inside the control cabinet begins at 69 W during light loading and can rise to 170 W at maximum electrical output. Under worst-case switching and magnetization conditions, the cooling circuit may need to carry away up to 360 W, a figure used for fan selection and airflow calculations in the IP54 enclosure. Connection space is conserved by limiting terminal assemblies to a width of 50 mm, leaving additional rail space for contactors, PROFIBUS timers, or protective fusing that complete the drive line-up.
